Portable power station



FIG. 1 is a perspective view of a portable power station, showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a right-side elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left-side elevation view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a top plan view thereof.

The broken lines in the drawings are for the purpose of illustrating portions of the portable power station that form no part of the claimed design. 

CLAIM The ornamental design for a portable power station, as shown and described. 